Cranial diploe hematoma is a hematoma that occurs between the inner and outer layer
of the skull and is often in infants and young children. Hemophilia A is an inherited
X-linked bleeding disorder caused by a deficiency of coagulation factor VIII (FVIII)
. Epidemiological survey results show that the prevalence of hemophilia in 24 provinces
and cities in China is 2.73/100,000, while only about 5% of patients are registered
. Hemophilia is mainly characterized by bleeding, which can occur anywhere in the
pa-tient's body and manifest as intracranial, gastrointestinal, or pharyngeal bleeding,
which can be life-threatening in severe cases. This article shares a case of a patient
with he-mophilia A complicated by a chronic giant diploe hematoma.
